The disclosure relates to a sarcoidosis animal model and methods of inducing sarcoidosis in an animal. The disclosure also relates to methods of producing an in vitro granuloma, and methods of using the sarcoidosis animal model. Disclosed herein are animals comprising one or more granulomas, wherein the one or more granulomas comprise Mycobacterium abscessus cell wall microparticles.

The disclosure relates to a sarcoidosis animal model and methods of inducing sarcoidosis in an animal. The disclosure also relates to methods of producing an in vitro granuloma, and methods of using the sarcoidosis animal model. Disclosed herein are animals comprising one or more granulomas, wherein the one or more granulomas comprise Mycobacterium abscessus cell wall microparticles.

A breeding method for improving reproductive performance of a chicken specialized dam line includes the steps of forming an F1 generation group, forming a breeding group, screening a breeding group, forming an F2 generation group, and continuously breeding to an Fn generation group. The method includes raising in small-scale groups and natural mating for systematic selection and breeding, which effectively reduces the generation interval and has the features of easy operation and fast genetic progress, not only ensuring animal welfare, but also effectively improving production performance.

A breeding method for improving reproductive performance of a chicken specialized dam line includes the steps of forming an F1 generation group, forming a breeding group, screening a breeding group, forming an F2 generation group, and continuously breeding to an Fn generation group. The method includes raising in small-scale groups and natural mating for systematic selection and breeding, which effectively reduces the generation interval and has the features of easy operation and fast genetic progress, not only ensuring animal welfare, but also effectively improving production performance.

Described herein are methods of increasing meat quantity and/or improving meat quality of domesticated meat animals using treatments of nicotinamide riboside. The nicotinamide riboside may be in the form of a chloride salt mixed or dissolved in a biologically-acceptable carrier. The treatments may be provided as an in ovo injection or orally administered to the live domesticated meat animal. The methods described herein advantageously increase the size and weight of the domesticated meat animals, reduce the incidences of transportation fatigue, and decrease meat discoloration over time.

A method of selecting a ruminating animal having a desirable, hereditable trait is disclosed. The method comprises analyzing in the microbiome of the animal for an amount of a hereditable microorganism which is associated with the hereditable trait, wherein the amount of the hereditable microorganism is indicative as to whether the animal has a desirable hereditable trait.

A method of selecting a ruminating animal having a desirable, hereditable trait is disclosed. The method comprises analyzing in the microbiome of the animal for an amount of a hereditable microorganism which is associated with the hereditable trait, wherein the amount of the hereditable microorganism is indicative as to whether the animal has a desirable hereditable trait.

The invention relates to methods of increasing the genetic progress of a line, breed or herd of swine through the use of sex-selected sperm cells in artificial insemination techniques. The invention also encompasses methods of artificially inseminating a swine via deep intrauterine catheter or via a laparoscopic procedure, which allow the use of reduced doses of sex-selected sperm cells.

The invention relates to methods of increasing the genetic progress of a line, breed or herd of swine through the use of sex-selected sperm cells in artificial insemination techniques. The invention also encompasses methods of artificially inseminating a swine via deep intrauterine catheter or via a laparoscopic procedure, which allow the use of reduced doses of sex-selected sperm cells.

Non-human animal models of non-alcoholic fatty liver disease (NAFLD) are provided. Compositions and methods for producing the non-human animal models and uses of the non-human animal models to screen and evaluate agents for treating or preventing NAFLD are also provided.